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Finding the Fourth Proportional to 353,519.87, 487,856.52 and 192,374.87

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Solution

The fourth proportional to 353,519.87, 487,856.52 and 192,374.87 is: 265,476.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,519.87 : 487,856.52 = 192,374.87 : x
  2. Step 2: Convert to fraction form
    353,519.87/487,856.52 = 192,374.87/x
  3. Step 3: Cross multiply
    353,519.87x = 487,856.52 × 192,374.87
  4. Step 4: Simplify right side
    353,519.87x = 93,851,332,174.37
  5. Step 5: Solve for x
    x = 93,851,332,174.37/353,519.87
  6. Step 6: Final answer
    x = 265,476.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.